<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Hello Spring Security</title>
</head>
<body>
    <h1 th:text="'登录成功! 尊敬的用户: ' + ${username}"></h1>
    <a th:href="@{/system/logout.html}">退出登录</a>
</body>
</html>